<template>
	<div>
		<div class="search">
			<input class="search-input" type="text" placeholder="输入城市或拼音" v-model="keyword">
		</div>

		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li class="search-itme border-bottom" v-for="item in list" @click="handleCityClick(item.name)">{{item.name}}</li>
				<li class="search-itme border-bottom" v-show="!list.length">没有找到匹配数据</li>
			</ul>
		</div>
	</div>
</template>

<script>
	import Bscroll from 'better-scroll'
	export default{
		data(){
			return{
				keyword:"",
				list:[],
				timer:null
			}
		},
		props:{
			cities:Object
		},
		watch:{
			keyword(){
				if(this.timer){
					clearTimeout(this.timer)		//节流函数。
				}
				if(!this.keyword){
					this.list=[]
					return
				}
				this.timer=setTimeout(()=>{
					const result=[]
					for(let i in this.cities){
						this.cities[i].forEach((value)=>{
							if(value.spell.indexOf(this.keyword)>-1||
								value.name.indexOf(this.keyword)>-1){
								result.push(value)
							}
						})
					}
					this.list=result
				},100)
			}
		},
		methods:{
			handleCityClick(city){
				this.$store.dispatch('changeCity',city)
				this.$router.push('/')
			}
		},
		mounted(){
			this.scroll=new Bscroll(this.$refs.search)
		}
	}
</script>

<style lang="stylus" scoped="">
	@import "~styles/varibles.styl"
	.search
		padding 0 .1rem
		height .72rem
		background $bgColor
		.search-input
			width 100%
			height .62rem
			line-height .62rem
			text-align center
			border-radius .06rem
			color #666
			box-sizing border-box
			padding 0 .1rem
	.search-content
		overflow hidden
		z-index 1
		position absolute
		top 1.58rem
		left 0
		right 0
		bottom 0
		background #eee
		.search-itme
			line-height .62rem
			padding-left .2rem
			color #666
			background #fff
</style>